Locomotive-exhaust.



Patented July 3 I900. vE. N'. SLOCUMr LOCOMOTIVE EXHAUST.

(Application filed Aug. 18, 1599.

(No Model.)

moooa 7 \00000000/ MN ""IIW'M'W the distance between the tip of the exhaust Um-me STATES jPATENT em ee EBENEZER N. SLOGUM, OF FORT SMITH, ARKANSAS, ASSIGNOR OF TWO- THIRDS TO HENRY H. HOOVER, OF SAME PLACE.

LOCOMOTIVE-EXHAUST.

SPECIFICATION forrning part of Letters Patent No. 652,902, dated July 3, 1900.

V 7 Application filed August 18, 1899. Serial No. 727,657. (N0 model.)

To (tZZ w/eom it may concern: I

Be it known'ihat LEBEN ZER N. SLocUM, of Fort Smith, in the county of Sebastian and State of Arkansas, have invented a new and Improved Locomotive-Exhaust, of which the following is a full, clear, and exact description.

The objects of the invention are to provide a new and improved locomotive-exhaust arranged to insure a free escape of the exhauststeam from the engine-cylinders without danger of creating back pressure therein and to provide a perfectly-balanced non-pulsating draft in the fire-box and smoke-fines with a reduced consumption of fuel and with the cinders put out and rendered harmless before escaping from the stack. I

The invention consists of novel features and parts'and combinations of the same, as will be fully described hereinafter and then pointed out in the claim.

A practical embodiment of my invention is represented in the accompanying drawings, forming a part of this specification; in which similar characters of reference indicate corresponding parts in both the views.

Figure 1 is a longitudinal sectional elevation of the improvement as applied. Fig.2-

is a transverse section of the same on the line 2 2 in Fig; 1.

In locomotives as heretofore constructed nozzle and the base of the stack was such that the exhaust-steam was discharged into the smoke-box above the lowermost fines,

so that the steam traveled up a short distance to the base end of' thepetticoat or draft pipe leading to the stack, and in order to create the desired draft in the fines or smoke-box it was necessary to let the exhaust steam issue from the nozzle with very great force, and in order to obtain this force the increase the distance from the base of the draft-pipe or stack to the tip of the nozzle,

preferably by shortening the nozzle and by elongating the smoke-box vertically or in remodeling old work by elongating the upper end of the smoke-box and leaving the nozzle the same length as at present or shortening it to a slight extent, so that it requires considerable time for the now unrestrained steam to travel from the nozzle to the stack to produce a non-pulsating even draft on the burning fuel in the fire-box. By bringing the top of the nozzle below the lowermost smoke-fines of the boiler the exhaust-steam traverses the entire discharge area of the smoke-fines, so that the cinders passing into the smoke-box from the flues are subjected to the action of the steam and are thus readily put out and rendered harmless by the time they pass out of the stack.

As shown in the drawings, the locomotiveboiler is provided with the usual shell A, in which extend the smoke-fines B, discharging the smoke, gases, and cinders from the firebox into a smoke-box 0, preferably elongated vertically below the shell A and above the same, as is plainly indicated in Figs. 1 and 2. The lower extension of the smoke-box O is formed in its bottom with an exhaust-port of large diameter, and over such port is arranged an exhaust-nozzle D, which is wide and short, as shown, located directly opposite the base. of the smoke-stack E, leading from the top of the smoke-box and carrying the smoke and cinders to the outside.

, Bythe arrangement described the tip of the exhaust-nozzle D is below the horizontal plane of the discharge from the lowermost said tip and the base of the stack E is immensely increased over that usually given in locomotives heretofore constructed. The nozzle D itself may be increased to insure a free and untrammeled issuing of the exhauststeam into the smoke-box, so that when the locomotive is in operation the steam can rise in a continuous column in the smoke-box and pass into the stack E without creating a violent pulsating draft in the smoke-fines B and the fire-box, but, on the contrary, producing a non-pulsating even draft in said smokefiues and fire-box. Furthermore, the steam while passing the long distance between the smoke-fines B, and the discharge between tip of the nozzle D and the base of the stack A traverses the entire discharge area of the smoke-fines B, and consequently the steam acts on the hot burning cinders and readily extinguishes them, so that theyare harmless before leaving the stack E.

If desired, an angularly-disposed netting F may be arranged in the smoke-box G, extending from the flue-sheet above the uppermost flues B downward and forward to the exhaust-nozzle, to prevent the heavy einders from passing to that portion of the smoke-box containing the exhaust-nozzle.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent In a locomotive, a boiler-shell, a smoke-box connected with the front of the boiler-shell and having an extension both above and below the same, a stack rising from the top of the upper extension of said smoke-box, there being provided an exhaust-port of large diameter in the bottom of the lower extension of the smoke-box, and a short and wide exhaust-nozzle secured in the bottom of the lower extension of the smoke-box over the port directly opposite and pointing toward the stack and whose tip is below the discharge of the lowermost flue in the boiler-shell, as and for the purpose set forth.

EBENEZER N. SLOCUM. Witnesses:

EDITH BLACK, Jos. M. HILL. 

